Hmm, sounds like a problem with the blend door, or the blend door actuator. I can't tell you right off hand where it is, but it would be behind the dash, possibly viewable from under the dash. Would need to turn the temp control cold to hot, and back to cold while watching it, see what is happening.

Thanks. Ill have to take a look and see what I can find. My understanding was that the temp door is on top of the hvac case. I can see it and feel it moving but I don't have full visibility. Appears that you have to drop the case to get it out if anyone has a different way to access or more info would be awesome